[...] One might have wondered whether there is something inherently difficult about fixing statistical bugs in spreadsheet package. It is reasonable for the developer of a spreadsheet package not to fix errors in a timely fashion? The answer to this question is seen to be, No. A related question is whether amateurs working on a volunteer basis, with no budget for R&D, could do a better job than professionals (who work for pay and have an R&D budget) when it comes to fixing statistical errors in a spreadsheet. The answer to this question is, Yes. [...]